<template>
  <div>
    <p>{{ state[0] }}</p>
    <p>{{ state[1] }}</p>
    <p>{{ state[1] }}</p>
  </div>
</template>
<script>
import { reactive} from 'vue'
export default{
  name:'App',
  setup(){
    const state = reactive(['arr1','arr2','arr3'])
    return{
      state
    }
  }
}
</script>